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城市工业污水处理是解决水资源缺乏最有效的措施,对于城市经济的可持续发展具有重要的意义。本文在分析城市工业污水处理基本方法的基础上,对城市工业污水回用的处理工艺、方式进行了深入探讨和研究,促进我国城市工业污水的处理技术,以便以后具有借鉴意义。 相似文献
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马原 《皮革制作与环保科技》2021,2(3):76-78
当前,我国高度重视乡镇生活污水处理工作,根据污水处理现状制定政策并推动污水处理工作的落实.本文首先分析了乡镇生活污水处理的政策,然后阐述了处理污水的工艺. 相似文献
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本文叙述了我国水资源短缺状况以及废水的污染给水资源造成的危害,论述了实现污水资源化的必要性,并提出了相应的处理方法和具体措施。 相似文献
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由金东纸业(江苏)股份有限公司承担的“江苏省造纸业排放水回用循环经济标准化示范(试点)”项目,日前以102分的高分顺利通过江苏省质监局组织的考核验收。这是全国造纸行业第1个建成并通过考核验收的循环经济标准化示范(试点)项目。
通过试点项目,金东纸业(江苏)股份有限公司建成了日处理放流水规模为l万m^2的造纸废水膜法高浓度回用工程。该工程装置正常运用后,每年回用水量合计超过200多万吨。 相似文献
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印染废水产生量大,有机物含量高,可生化性差,并具有一定的毒害性,是难处理工业废水之一,它已经对我国水环境构成严重威胁。随着人们环保意识的增强,印染废水深度处理和回用越来越受到政府的关注。文章介绍了印染废水的回用现状,对印染废水的回用标准作了简单说明,阐述了印染废水的治理措施和方法。 相似文献
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AbstractWastewater generated from the conventional pretreatment process is having potential to reuse several times for pretreatment of subsequent batches without harming the fabric quality. As the major portion of water is used in textile pretreatment processes, in the present work a novel method was studied for direct reuse of wastewater in combining scouring and bleaching process. The wastewater generated by the conventional pretreatment was reused with and without mixing with freshwater. Simple technique like filtration with nylon mesh was also studied for its effects on efficiency of pretreatment. The pretreated fabrics were characterized using advanced techniques and further evaluated towards efficiency of scouring and bleaching. In order to evaluate the effect of novel pretreatment process involving reuse of wastewater on dyeability, the pretreated fabrics (using both conventional and novel methods) were further studied for dyeability using reactive dyes. The resulting wastewaters were characterized before reuse in novel method. The pretreated fabrics showed insignificant variations in strength and pretreatment efficiency. The dyeability of both fabrics towards reactive dyes was comparable. The volume of effluent generated was greatly reduced in novel method which showed a great promise to save 33% of water in pretreatment process of cotton fabric. 相似文献
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印染废水深井处理回用系统高效低耗,文中结合常州市某印染公司的实际运行效果,论证分析了深井处理回用系统在印染企业应用的可行性和运行效果,包括深井处理的主要构筑物,以及其在印染废水处理中效果,包括COD去除率,主要构筑物的DO(沉降比)和SV(溶解氧),以及氨氮、总磷、色度等的去除.深井处理的经济效益可观,6~9年即可回收改造成本. 相似文献
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